I've been thinking a bit about lighting, and the eventual change to LED lighting everywhere, and how to make this cost efficient. This has got me to thinking about weather it would be worth it to start converting to DC power inside home breaker boxes. - I'm thinking moderate voltage DC - like 12 or 15 volts. The cost of the LED bulbs seems to be in the converter, pwb, etc, so why not put the converter in the breaker box?
Look around your house - almost everything has a AC-DC converter on it. TV, amplifiers, lighting (more prevalent as time goes on), computers, alarm clocks, you name it - only a few things run on AC power these days.
Seems to me that to really get the cost down on lighting you have to have a converter in the breaker box. This would have the side effect of not needing converters in every single piece of equipment you buy, making things cheaper in the long run.
There would be other challenges, like bus impedance, efficiency, cable loss, etc, but it seems to me like this is the direction we're headed. I have started to see wall outlets with USB outlets in them at the home depots. You could even have high efficiency POL converters in the wall outlets. It would also increase safety - I've never heard of anyone being seriously injured by 15VDC.
Maybe I shouldn't be giving these ideas away for free on the internet?
Look around your house - almost everything has a AC-DC converter on it. TV, amplifiers, lighting (more prevalent as time goes on), computers, alarm clocks, you name it - only a few things run on AC power these days.
Seems to me that to really get the cost down on lighting you have to have a converter in the breaker box. This would have the side effect of not needing converters in every single piece of equipment you buy, making things cheaper in the long run.
There would be other challenges, like bus impedance, efficiency, cable loss, etc, but it seems to me like this is the direction we're headed. I have started to see wall outlets with USB outlets in them at the home depots. You could even have high efficiency POL converters in the wall outlets. It would also increase safety - I've never heard of anyone being seriously injured by 15VDC.
Maybe I shouldn't be giving these ideas away for free on the internet?